Lotus-leaf like ZnO nanostructures based electrode for the fabrication of ethyl acetate chemical sensor

The simple reflux method was employed to grow the unique lotus-leaf (LL) like ZnO nanostructures on the FTO substrate and utilized as working electrode for the fabrication of ethyl acetate (EA) chemical sensor at low level detection. Well-defined and uniform lotus-leaf like morphology was observed which possessed the average size of similar to 100-150 nm. The synthesized LL-ZnO nanostructures were highly crystalline, pure and exhibited typical wurtzite hexagonal structure. The fabricated EA chemical sensor based on LL-ZnO electrode displayed substantially high sensitivity of similar to 139.8 mu A. mM(-1) cm(-2), the limit of detection (LOP) of similar to 0.26 mM, with correlation coefficient (R) of similar to 0.9749. (C) 2015 Elsevier B.V. All rights reserved.